Write a program using the XLAT instruction that will read a letter from the keyboard mat is one of the first 9 letters (a through i) and will output a number 1 through 9 output the number 1 if it is the letter a, output the letter 2 if it is the letter b, etc. Results: Explain how the program works. Reference for reading from the keyboard. A program to get a character from the keyboard (without testing 4 a character is ready) and place that character in location 400 is as follows: Reference for writing to the screen